The lathe – why it appears and how we can treat it

The lathe (median diastem) represents a space greater than 0.5 mm between the two front teeth.

The lathe, called diastematic medical terms, may be disturbing to some people, while for others it is a distinctive sign, because it is a family characteristic and gives them a special air, being part of their personal charm. Ms. Mihaela Dan, a orthodontist at Orto-Implant Expert Clinic , says this problem occurs more frequently in children than in adults, and if it is disturbing, it can be treated regardless of the age of the patient.

The lathe (median diastem) represents a space greater than 0.5 mm between the two front teeth. Although the first impact is the aesthetic, this dental goal being visible when we talk or smile, the diastema can also affect speech – especially the pronunciation of the letters “s” and “t”.

“Children are most often affected by the diastem, but often in their case the problem is temporary and should corrected after the teeth begin to fall. In adults, however, the diastema is most often permanent and will require treatment to eliminate the gap between the teeth, “says Dr. Mihaela Dan.

“The most common cause of the knife is the mismatch between jaw and jaw size: either the size of the jaw is too large for the teeth, or the teeth are too small for the jaw,” says the orthodontist. Apart from a dimensional discrepancy, there are still a number of reasons why loopholes or spaces can form between the teeth and the small ones:

Transient diastemat

The transient diastema encountered in children and represents a temporary stage when the two central incisors of the baby go too far. After the eruption of neighboring teeth, however, the space closes by itself, through the pressures exerted by them to place themselves on the arch.

Oral breathing or sucking your finger

Both habits may result in the teeth being pushed forward, on a larger circle arc and, implicitly, the appearance of dental sprains.

“This is a situation where dental treatment is recommended as early as possible, because at a young age the jaws are more malleable. In the adult, such a situation can produce periodontitis and is more difficult to treat, “says Dr. Mihaela Dan, orthodontist.

Diastema vera

The diastema vera produced by the upper and lower lip frenches, a fibrous tissue that comes from the upper lip and penetrates the teeth.

“In such cases accrest fren should cut through a small, extremely simple incision, performed with local anesthesia. Healing will take place very quickly, because that fibrous tissue acts as an elastic cushion, which prevents the teeth from aligning even with a dental appliance or produces a relapse later, “explains the orthodontist.

Teeth too small and jaw too big

When the child inherits the jaw from one parent and the teeth from the other, there are dental spans between more teeth, not just between the two central incisors. This type of microdermosis can only treated with a fixed dental device (brackets), not with a mobile dental device.

Anodosis (lack of birth teeth)

When the lateral incisor is missing, between the superior canines there will appear dental sprains resulting from the excess of space caused by the absence of one or two front teeth. “In this situation, there are two types of orthodontic fixation: either the canines move along the central incisors and the tip of the incisors is cut off to show lateral incisors, or the central incisors approach and the gap for the missing teeth increases, after 18 years) a dental implant, “says Dr. Mihaela Dan.

In the case of adults, besides childhood situations left untreated, there are two important causes that can favor the appearance of the lathe:


When the gums and bone recede, implantation of the teeth in the bone decreases, and the teeth begin to migrate, the dental spas easily appear. Periodontal treatment should combined with orthodontic treatment to restore the teeth to normal.

Dental extraction

If the extracted teeth not replaced for a long time with implants or dental work, the neighboring teeth migrate to the place that left free and thus it can appear rotated. The dental device has the role of closing the diamond, but also of correcting the position of the teeth, since the inclined teeth do not receive the forces in their normal axis and may favor gingival retraction and periodontitis.

So, there are several possible causes for the appearance of the lathe, and even if this problem is not disturbing from aesthetic perspective, it may also mean that the bite does not work properly, which can cause new dental problems: scissor teeth, caries, etc. The first thing to do if the gap between the teeth appears is to visit the dentist, who will evaluate the case by providing a solution that meets both aesthetic and financial needs of the patient.


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